CN103814424A - Fuse assembly - Google Patents

Fuse assembly Download PDF

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Publication number
CN103814424A
CN103814424A CN201280044210.XA CN201280044210A CN103814424A CN 103814424 A CN103814424 A CN 103814424A CN 201280044210 A CN201280044210 A CN 201280044210A CN 103814424 A CN103814424 A CN 103814424A
Authority
CN
China
Prior art keywords
fuse
assembly
block
post
end fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201280044210.XA
Other languages
Chinese (zh)
Other versions
CN103814424B (en
Inventor
J·乌雷亚
G·M·博尔德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Littelfuse Inc
Original Assignee
Littelfuse Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Littelfuse Inc filed Critical Littelfuse Inc
Publication of CN103814424A publication Critical patent/CN103814424A/en
Application granted granted Critical
Publication of CN103814424B publication Critical patent/CN103814424B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/68—Structural association with built-in electrical component with built-in fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H85/12—Two or more separate fusible members in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/20—Bases for supporting the fuse; Separate parts thereof
    • H01H85/205—Electric connections to contacts on the base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/025—Structural association with a binding post of a storage battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/055—Fusible members
    • H01H2085/0555—Input terminal connected to a plurality of output terminals, e.g. multielectrode

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  • Fuses (AREA)

Abstract

A circuit protection assembly includes a mounting block, a unitary fuse assembly, a post assembly and a plug connector. The unitary fuse assembly is disposed the mounting block and includes a plurality of fuses each of which is defined by a portion of a bus plate disposed on the lower surface of the mounting block to form a first terminal of the fuse, a second terminal disposed at least partially on the upper surface of the mounting block and a fuse element connecting the first terminal and the second terminal. The post assembly is disposed at least partially within the mounting block and a post extending from the block. The plug connector extends from a portion of the first terminal of at least one of the plurality of fuses.

Description

Fuse assembly
Technical field
Embodiments of the invention relate to the field of circuit protection device.More specifically, the present invention relates to a kind of fuse assembly that uses post to arrange, this fuse assembly is easier to manufacture and constructs for fuse provides built-in insulation.
Background technology
Fuse is used as circuit protection device and forms power supply and want the electrical connection between the parts in protected circuit.Particularly, fuse can be configured to the damage that prevents that overload current situation from causing.When being configured in circuit to occur the overload voltage of specifying and/or overload current situation, physically opens by fuse or interrupt circuit path and isolate electric parts in order to avoid damage.
Electric system in vehicle typically comprises that the circuit protection device of many these types avoids with protective circuit, equipment and parts the damage that these situations cause.For example, the power supply (for example, battery) in vehicle uses the fuse being assemblied on termination case post, and the annular end fitting of cable is connected to this fuse.Nut is threaded onto on this post conventionally so that annular end fitting and fuse are remained on to appropriate location.In the time that excess current situation exists, the fuse protection on termination case post is connected to the parts of power supply and avoids this excess current.In the time that annular end fitting directly electrically contacts post rather than passes through fuse, accidental short circuit occurs.In order to overcome this problem, the insulating nut being assemblied on this post is walked around fuse and is damaged protected circuit to prevent electric current for disconnecting fuse and annular end fitting.
In some applications, single power supply can be arranged and share that distributing electric power is arrived to multiple circuit with multiple these fuses.For example, Fig. 1 is the side view cutaway drawing of fuse assembly 10, and shell or block 20 are shown, post 25 extends from this shell or block, and fuse 30 is arranged on this shell or block.Annular end fitting 40 assembles on post 25.Annular end fitting 40 is connected to cable 41 and wants protected circuit to supply power to.Annular end fitting 40 is configured to electrically contact the upper termination case of fuse 30, but insulate with post 25.In this structure, electric power is supplied to the busbar 45 being arranged in block 20, and this busbar is connected to the lower termination case of fuse 30.By this way, fuse 30 is connected busbar 45 by fuse element 35 with annular end fitting 40.In the time that overload current situation occurs, fuse element 35 is opened or is otherwise prevented that electric current from flowing to annular end fitting 40 from busbar 45, therefore protects this circuit.Post 25 is molded in block 20, and this block is typically made of plastics.Unfortunately, by an end of post 25 is molded in block 20, cause other manufacturing step and relevant cost.Therefore, need to provide a kind of fuse assembly, this fuse assembly comprises the post or the termination case part that are easier to manufacture, and provides insulation structure to prevent unnecessary short circuit.In addition, vehicle electrical system complexity increases, and therefore this increase the quantity of wanting protected circuit wherein.This must need increasing fuse element.But the inconsistent interests of existence are keep this protective circuit compactness, light weight and can easily change, to retain valuable vehicle space and weight floor space.In view of these and other Consideration, need improvement of the present invention.
Summary of the invention
Provide this summary so that with the selection of the form introduction design simplified, being chosen in below of this design is further described in detailed description.This summary is not intended to determine key feature or the essential feature of claimed theme, is also not intended to help to determine the scope of claimed theme.
Exemplary embodiment of the present invention relates to a kind of protective device, and this protective device is arranged in power supply and wants between protected circuit.In the exemplary embodiment, a kind of circuit protecting assembly comprises fuse assembly, column assembly and pin connector that block, monomer are installed.This installation block comprises upper surface and lower surface.The fuse assembly of monomer is arranged at least in part to be installed block around and has multiple fuses, each of the plurality of fuse is limited by following part: be arranged in a part for the cylinder manifold that the first end fitting to form fuse is installed on the lower surface of block, be arranged at least in part the second termination case and the fuse element that is connected first end fitting and the second termination case on the upper surface of installation block.Column assembly is arranged in installation block at least in part and post extends from this block.Pin connector from multiple fuses at least one first end fitting a part extend.
Accompanying drawing explanation
Fig. 1 illustrates the prior art fuse assembly that uses to become with block integrally molded post.
Fig. 2 A illustrates according to the decomposition diagram of the exemplary fuse assembly of embodiment of the present disclosure.
Fig. 2 B illustrates according to the perspective bottom view of the fuse assembly of Fig. 2 A of embodiment of the present disclosure.
Fig. 2 C is the sectional side view of a part for the fuse assembly shown in Fig. 2 A and 2B.
Fig. 3 A illustrates according to the decomposition diagram of the fuse using in the assembly of embodiment of the present disclosure.
Fig. 3 B is according to the top plan view of the fuse using in the assembly of embodiment of the present disclosure.
Fig. 4 A-4D is the various perspective views according to the assembly of alternate embodiment of the present disclosure.
Fig. 5 is according to the perspective view of the exemplary embodiment of alternate embodiment of the present disclosure.
Fig. 6 A-6B is according to the perspective view of the exemplary embodiment of alternate embodiment of the present disclosure.
Fig. 7 is the decomposition diagram according to exemplary embodiment of the present disclosure.
Fig. 8 A is the perspective view according to exemplary embodiment of the present disclosure.
Fig. 8 B is according to the end view of the exemplary embodiment shown in Fig. 8 A of the present disclosure.
Fig. 9 A is the decomposition diagram of exemplary embodiment of the present disclosure.
Fig. 9 B is the perspective view of exemplary embodiment of the present disclosure.
Fig. 9 C is the perspective view of exemplary embodiment of the present disclosure.
Embodiment
Now will with reference to accompanying drawing, the present invention more completely be described below, the preferred embodiments of the present invention shown in the drawings.But the present invention may be embodied as many multi-form and should not be construed as limited to here the embodiment setting forth.Or rather, provide these embodiment to make the disclosure by thorough and complete, and will pass on scope of the present invention to those skilled in the art completely.In the accompanying drawings, similar Reference numeral is quoted similar key element all the time.
Fig. 2 A is the perspective view of fuse assembly 100, and this fuse assembly comprises shell or block 120, and one or more fuse 130 is arranged on this shell or block.In this drawing, a fuse 130 is shown as has two posts 125 and 155, and its center pillar 155 supplies power to cylinder manifold 131, and post 125 is received fuse 130.Particularly, the first post 125 is arranged through the corresponding hole in receiving opening and the cylinder manifold 131 in block 120.Fuse 130 can be pottery " block " fuse, and this fuse has the aperture at center (as shown in Figure 3 B) substantially, and post 125 is received in this aperture.Separator 126 is isolated fuse 130 and post 125.The annular end fitting 140 that is connected to cable 141 is arranged on post 125, and nut 145 is threadedly engaged with this post so that fuse and annular end fitting are remained on to appropriate location.The second post 155 extends through block 120 and electrically contacts to provide electric power to it with busbar 131.Post 155 is also threaded and receives annular end fitting 150 and nut 155.Cable 151 is connected to post 155 distributing electric power is arrived to fuse assembly by busbar 131 by annular end fitting 150.By this way, from annular end fitting 150 to cylinder manifold 131, by fuse 130, to annular end fitting 140, to wanting protected parts and/or circuit, form loop.Therefore, at a position, (for example, annular end fitting 150 and cylinder manifold 131) is supplied to this assembly to electric power, and for example, is assigned to circuit by corresponding fuse assembly (, fuse 130).
Fig. 2 B is the bottom view of assembly 100, and this bottom view is illustrated in the maintenance structure of the post 125 and 155 in block 120.Particularly, the bottom side of block 120 comprises depression, and the size of this depression is greater than the head of each post 125,155 slightly, and these header arrangement make corresponding post be fixed on appropriate location by block 120 in this depression.Post 125 and 155 can be press-fit in the respective recesses of block 120, and wherein depression has the shape identical with the corresponding heads of each post 125,155, and the body part of each post extends through block 120.By this way, post does not need integrally molded with 120 one-tenth of blocks, therefore reduces and manufactures and labour cost.
Fig. 2 C is the sectional side view of a part for the fuse assembly shown in Fig. 2 A and 2B.As can be seen, the head 125a of post 125 is recessed in block 120, but is not molded in wherein.For the separator 126 of the parts that separate and the part that is not molded as block 120 from the head 125a extend to along post 125 in the bottom of fuse 130 so that post 125 is isolated with busbar 131.By post 125 and separator 126 not being molded in block 120, save manufacturing cost.Fusible element 136 is connected to lower fuse termination case 135 ', and this lower fuse termination case and busbar 131 electrically contact.In normal operation, electrical connection is formed between busbar 131, lower fuse termination case 135 ', fusible element 136, upper fuse termination case 135 and annular end fitting 140.In the time that overload current event occurs, fusible element 136 fuses or otherwise disconnects this electrical connection.
Fig. 3 A is that perspective view and Fig. 3 B of block fuse 130 is its top plan views.Fuse 130 is limited by shell 130 ', and the aperture 127 of layout placed in the middle can be made and be had by for example ceramic material to this shell, receives post 125 by this aperture.Fuse 130 comprises fuse element 136, and this fuse element electrically contacts to provide power path to being used to busbar 131 to supply the protected circuit of wanting of electric power by termination case 135 and annular end fitting 140.Fuse element 136 can also comprise maintenance flange 137, and this maintenance flange extends to help its maintenance towards shell 130 '.Fuse 130 also comprises cover 180, this cover protection fusible element 136 avoid the impact of ambient particles and in the time that fuse fuses due to overload current situation for comprising arc discharge.Cover is arranged in the groove 185 of fuse 130 ' at least in part, and this groove contributes to cover to remain on appropriate location.
Fig. 4 A-4D is according to the various perspective views of the assembly 200 of alternate embodiment of the present disclosure.The fuse 130 of the separation shown in alternate figures 2-3, this embodiment is by fuse 230 1... 230 nbe incorporated in the assembly of monomer with block 220.Particularly, Fig. 4 A illustrates block 220, and this block comprises the busbar 231 on the bottom that is arranged in block, and this busbar extends the length (seeing Fig. 4 D) of this block.When feed cable is connected to post 225 1time, the Part I 229 of assembly 200 is limited to the connection of power supply.Busbar 231 is connected to post 225 by the electrical connection (not shown) of block 220 exterior circumferential 1.The remainder of block 220 limits fuse 230 1... 230 n, the separative fuse element 236 of each fuse tool 1... 236 n, the busbar 231 of the first end fitting that serves as each fuse is connected to the second termination case 235 by this fuse element 1... 235 n.As shown, fuse element 235 1for busbar 231 is electrically connected to termination case 235 1to limit fuse 230 1.Fuse 230 1... 230 neach can also comprise cover 237 n, this covers the corresponding fusible element 236 of lid 1... 236 n.
Fig. 4 B is for only illustrating post 225 1... 225 nthere is no fusible element or busbar with block 220, thereby illustrate how this post is arranged in the depression of block 220 to be connected to annular end fitting.Particularly, block 220 is shown as and has empty depression 228 1... 228 n, in the depression of this sky, will arrange fuse element 231 1... 236 n.Each post 225 1... 225 nheader arrangement in block 220.This allows each post only to extend through the corresponding termination case 235 of each fuse from block 220 1... 235 n.This eliminates each insulated column 225 1... 225 nneeds, this is because each post is only outstanding through termination case 235 1... 235 ncorresponding one and do not contact busbar 231.In addition, owing to not using separator, once fuse is arranged on post 225 1... 225 nthe upper compression stress with regard to existence is limited to the contact point between post and corresponding fuse termination case.By this way, each post 225 nthe directly corresponding fuse 230 of contact ncorresponding termination case 235 n.This eliminates the needs that use separator (this separator can tolerate the compression stress of latch permanent joint), and this is because institute's compressive is directly between fuse termination case and corresponding post.In previous designs, need special plastic to form separator and block 220.These expensive special plastics are selected to tolerate the heat between the operating period and the compression stress producing in the time that fuse is bolted to post.By contrast, due to post 225 of the present disclosure 1... 225 ndo not extend through block 220, this has eliminated to use and can tolerate the expensive high temperature plastics of these compression stresses or the needs of pottery.
Fig. 4 C illustrates special fuse 230 nthis assembly analyse and observe cross section, this fuse has: the first end fitting being limited by the corresponding part of busbar 231; By fuse element 236 nwith post 225 nthe second termination case 235 connecting n, this post upwards extends through the second termination case 235 nin aperture to be connected to annular end fitting.Each fuse also comprises the cover 280 as described in Fig. 3 B n, this cover is protected corresponding fusible element 236 n.
Fig. 5-7th, comprise heteroid termination case, block, post and fusible element according to the various views of the assembly of alternate embodiment of the present disclosure.Fig. 5 illustrates assembly 500, and this assembly comprises block 520, and this block has and is suitable for receiving the paired of block fuse (for example, 130 shown in Fig. 3 A) or post 525 side by side 1... 525 n structure.Block 520 can be the monomer part of for example plastics, and this monomer part comprises the busbar 531 on the bottom that is arranged in block 520, and this busbar extends length and the width of block.In the time that feed cable is connected thereto, the Part I 529 of the busbar 531 of assembly 500 is limited to the connection of power supply.
Fuse 530 1... 530 nthe separative fuse element 536 of tool respectively 1... 536 n, this fuse element is connected to the busbar 531 of first end fitting that serves as each fuse the second corresponding termination case 535 of this fuse 1... 535 n.For example, fuse element 536 1for busbar 531 is connected to termination case 535 1to limit fuse 530 1.Each of fusible element is arranged to leave the wall 520A certain distance of block 520, and this is the plastic material that increases during use and should not contact block 520 due to the temperature of each of fusible element.
Multiple posts 525 1... 525 neach cave in and 527 be arranged in block 520 by fluting.This allows each post only to extend through corresponding the second termination case 535 from block 520 1... 535 nand do not contact busbar 531.As described in above with reference to previous embodiment, because this post does not extend through block 520 always, this has eliminated expensive high temperature plastics or the ceramic needs for block, and in the time that termination case is connected to post, this block can tolerate compression stress.Distance piece or protector 534 ncan be arranged in each termination case 535 nbetween to separate each termination case 535 1... 535 nand column combination.
Fig. 6 A-6B illustrates another embodiment according to assembly 600 of the present disclosure.Fig. 6 A is the top perspective view of assembly 600, and Fig. 6 B is the perspective disassembled view of same components 600.Assembly 600 comprises block 620, and this block is limited by the first sub-block body 620A and the second sub-block body 620B.In this embodiment, busbar (for example, 531 shown in Fig. 5) is limited by the second subdivision 631B that is arranged in the Part I 631A on the bottom of the first sub-block body 620A and be arranged on the bottom of the second sub-block body 620B.Busbar part 620A, 620B limit fuse 630 1... 630 neach first end fitting, and the second termination case is by appropriate section 635 1... 635 nlimit.Post 625 1... 625 neach be suitable for receive for example at the example annular termination case shown in Fig. 1 and 2.
The feed cable that receive for assembly 600 coupling part 629.Coupling part 629 by be suitable for receiving for example feed cable annular end fitting the first pontes 629A and limit via the second coupling part 629B of aperture 629B'.Other fuse element 636 n+1(in Fig. 6 B, clearlying show that) can be arranged between the first and second coupling part 629A and 629B and be arranged in shell 628.
Fig. 6 B illustrates the decomposition view of assembly 600, wherein fuse part 630 1... 630 nbe shown as by corresponding busbar part 631A and 631B, fusible element 636 1... 636 nwith termination case 635 1... 635 nthe monomer segment limiting.These monomer parts are arranged in around respective masses part 620A and 620B, post 625 1... 625 noutstanding through upper termination case 635 1... 635 neach in aperture.The first cover 680A and the second cover 680B are used for covering corresponding fusible element 636 1... 636 n.The first side of each of sub-block body 620A and 620B has depression 621 and projection 622, and this depression and projection are aligned that two sub-blocks are combined together to form block 620.
Fig. 7 is according to the decomposition diagram of replacement assemblies 700 of the present disclosure.In this embodiment, block 720 is monomer part and the fuse assembly that is configured to receive the monomer that is shown as generally 730A.The assembly 730A of monomer is by busbar 731 and fuse 730 1... 730 nlimit.Busbar 731 forms each first end fitting of fuse, and the second termination case 735 1... 735 nrespectively by fusible element 736 1... 736 nbe electrically connected to first end fitting, this fusible element is arranged between first end fitting and the second termination case.
Block 720 comprises the first and second depression 721A, 721B, and this first and second depression is configured to receive the assembly 730A outside that the first and second post block 722A, 722B(790A are shown as in the assembly 730A that is arranged in monomer and 790B is shown in monomer of the first and second column assembly 790A and 790B to easily illustrate).By this way, block 720 slides in the assembly of monomer and receives column assembly 790A and 790B, or the assembly 730A of monomer slips over block 720, and column assembly 790A and 790B are arranged in depression 721A and 721B at least in part.
Fig. 8 A is according to the decomposition diagram of the alternate embodiment of assembly 800 of the present disclosure.In this embodiment, block 820 can be blocks monomer or many, and its Part I 820A is configured with the post 825 for being connected to one or more stube cable 1, 825 2, and Part II 820B receives as spill fuse part 835 described below n-2... 835 n.Be depicted as generally the assembly of monomer of 830A by busbar 831 and fuse 830 1... 830 nlimit.Busbar 831 forms each first end fitting of fuse, and the second termination case is shown as 835 1... 835 n, fusible element 836 1... 836 nbe arranged in therebetween.Termination case 835 n-2... 835 ncan be configured to male end fitting to be inserted into depression 832 1... 832 nin.Multiple lock parts 823 1... 823 nbe arranged on the top of block part 820B to remain connected to spill fuse part 835 n-2... 835 neach.This can be more clearly in sight with reference to figure 8B, and this illustrates the end view of assembly 800.Depression 832 1... 832 nextend through block part 820B and arrive its opposite side to be received into by lock part 823 1... 823 nbe maintained at the spill fuse part 835 of appropriate location n-2... 835 nconnection.
Fig. 9 A, 9B and 9C are according to the various views of the assembly 900 of alternate embodiment of the present disclosure.Particularly, Fig. 9 A holds multiple fuse assemblies 930 1... 930 nthe decomposition diagram of block 920.Each fuse assembly 930 1... 930 ncomprise first end fitting part 931 1... 931 nwith the second termination case part 910 1... 910 n, fusible element 936 1... 936 nconnect respectively first end fitting 931 1... 931 nwith the second termination case 910 1... 910 nin each.Each fuse assembly 930 1... 930 n first end fitting 931 1... 931 neach limited by a part that is arranged in the cylinder manifold 931 on the surperficial 920A of block 920.The second termination case 910 1... 910 neach be arranged on the surperficial 920B of block 920.Multiple walls or fuse separation member 915 1... 915 ncan be arranged in fuse assembly 930 1... 930 ncorresponding the second termination case part 910 1... 910 nbetween.Fusible element 936 1... 936 neach be arranged to leave corresponding sidewall 915 1... 915 ncertain distance is to be suitable for the heat dissipation from each of corresponding fusible element.The one 925A and the 2nd 925B plug or insertion connector form fuse assembly 930 3with 930 4first end fitting and from fusible element 936 3with 936 4extend.The first insertion connector 925A and second inserts connector 925B can be connected to lower current ratings.Cover 937 is arranged in fusible element 936 1... 936 nupper and by protuberance 940 1... 940 nbe connected to block 920, this protuberance respectively with cover aperture 941 1... 941 ncoordinate.Except covering 937, at protuberance 940 1... 940 nbetween depression in the block 920 that limits can be for further protection fusible element 936 1... 936 n.
Fig. 9 B illustrates the cover 937 complete assemblies 900 that are arranged on block 920.Multiple posts 925 1... 925 nextend from the surperficial 920B of block 920.Each post can be arranged at least in part in the part of block 920 and extend through corresponding fuse assembly 930 1... 930 ncorresponding the second termination case 910 1... 910 nhole 911 1... 911 n.Particularly, each post 925 1... 925 nend can be arranged in the depression of block 920, the depression of block 920 is similar to the depression 226 of the block 220 shown in Fig. 4 B n.This allows each post to extend through each fuse assembly 939 from block 220 1... 939 ntermination case 910 1... 910 ncorresponding hole 911 1... 911 n, rather than extend through block 920.
Fig. 9 C is another perspective view that the assembly 900 of busbar 931 is shown, this busbar extends the length of block 920 and forms fuse assembly 930 1... 930 neach first end fitting.Extend and can be for fuse assembly being connected to power supply (such as the battery in vehicle) from block 920 busbars 931 coupling part 929.
Although the present invention is disclosed with reference to some embodiment, many modifications, variation and the change of described embodiment are possible, and do not depart from as the field of the invention defined in the appended claims and scope.Therefore, anticipate and seek for, the invention is not restricted to the embodiment that describes, but its four corner is limited by the language of following claim and equivalent thereof.

Claims (8)

1. a circuit protecting assembly, described circuit protecting assembly comprises:
There is the installation block of upper surface and lower surface;
Be arranged at least in part the fuse assembly of described installation block monomer around, the fuse assembly of described monomer has multiple fuses, each fuse in described multiple fuse is limited by following part: be arranged on the lower surface of described installation block a part for the cylinder manifold of the first end fitting to form described fuse, be arranged at least in part the second termination case on the described upper surface of described installation block and connect the fuse element of described first end fitting and described the second termination case;
Column assembly, described column assembly is arranged in described installation block at least in part and post extends from described installation block; With
Pin connector, a part for the described first end fitting of at least one fuse of described pin connector from described multiple fuses is extended.
2. circuit protecting assembly claimed in claim 1; wherein; described at least one fuse that described pin connector forms in first end fitting part and described multiple fuse is first fuse in described multiple fuse; described assembly comprises the second pin connector, and the described first end fitting of second fuse of described the second pin connector from described multiple fuses extends.
3. circuit protecting assembly claimed in claim 1, comprises coupling part, and extend to be connected to power supply from described cylinder manifold described coupling part.
4. circuit protecting assembly claimed in claim 1, wherein, described installation block has multiple depressions, is furnished with at least a portion of corresponding fusible element in described multiple depressions.
5. circuit protecting assembly claimed in claim 4; wherein; described sunk part ground is limited by sidewall, and each fusible element in described fusible element is arranged to leave described sidewall certain distance, to be suitable for the heat dissipation of each fusible element from described fusible element.
6. circuit protecting assembly claimed in claim 5, wherein, the described upper surface of described installation block comprises multiple depressions, each post in described post has the first end being arranged at least in part in corresponding described depression.
7. circuit protecting assembly claimed in claim 1, also comprises cover, and described cover extends to described second termination case of described fuse from the described first end fitting of described fuse, and wherein said cover is arranged on described fuse element.
8. circuit protecting assembly claimed in claim 1; wherein; described installation block comprises the depression of extending along a part for the length of the described upper surface of described block, and described depression is configured to receive the first end of each post in the described multiple posts that are arranged at least in part in described depression.
CN201280044210.XA 2011-09-12 2012-09-11 Fuse assembly Active CN103814424B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/230,278 2011-09-12
US13/230,278 US8665056B2 (en) 2010-05-18 2011-09-12 Fuse assembly
PCT/US2012/054578 WO2013039864A1 (en) 2011-09-12 2012-09-11 Fuse assembly

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Publication Number Publication Date
CN103814424A true CN103814424A (en) 2014-05-21
CN103814424B CN103814424B (en) 2017-02-01

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US (3) US8665056B2 (en)
EP (1) EP2756513B1 (en)
JP (1) JP5786096B2 (en)
KR (1) KR101996688B1 (en)
CN (1) CN103814424B (en)
IN (1) IN2014MN00432A (en)
WO (1) WO2013039864A1 (en)

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US8669840B2 (en) 2010-05-18 2014-03-11 Littelfuse, Inc. Fuse assembly
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EP2756513A4 (en) 2015-05-20
EP2756513B1 (en) 2017-01-04

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